Vehicle-spring.



W. S. LEE.

VEHICLE SPRING.

APPLICATION FILED Arms, 1913.

Patented Apr. 7, 1914.

srars WILLIAM S. LEE, 0F DETROIT, MICHIGAN, ASSIGNOR T0 BRIGGS-DETROITER COMPANY, OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

VEHICLE-SPRING.

Specification of Letters Patent.

Patented Apr. 7, 1914.

Application filed April 8, 1913. Serial No. 759,582.

To all whom it may concern Be it known that I, IVILLIAM S. LEE, a citizen of the United States, and a resident of Detroit, in the county of "Wayne and State of Michigan, have invented a new and Improved Vehicle-Spring, of which the following is a specification.

This invention relates to the construction of vehicle springs formed of a series of com para-tively thin and narrow superimposed leaves, and its object is to so construct a spring of this type that it will have great strength immediately over the point of support.

This invention consists in arching those portions of the leaves of the springs which are immediately above the point of support, both longitudinally and transversely in such a manner that the leaves may be nested, and thus insure a perfect engagement, and at the same time, giving the individual leaves great stiffness at that point.

It further consists in providing the spring with a filler block which may be mounted on the spring-perch in order to furnish a proper bearing for the spring.

In the accompanying drawing Figure 1 is a side elevation of a spring formed of leaves having portions intermediate their ends arched longitudinally and transversely. Fig. 2 is a section on the line 22 of Fig. 3. Fig. 3 is a section on the line 8-3 of Fig. 2. Fig. 4 is a side elevation and Fig. 5 an end elevation of the filler block.

Similar reference characters refer to like parts throughout the several views.

In the drawing the spring-perch 4 is adapted to receive the axle, and has a fiat upper surface 5 upon which the filler block 6 may rest. It is also provided with a central bore 7 to receive the lug 8 of the filler block. The upper surface of this filler block is curved longitudinally and transversely as shown in Figs. 4 and 5.

U-shaped bolts 9 having nuts 10 at the lower ends, extend over the leaves 11 of the spring and hold them against the filler block. Each leaf is arched longitudinally and transversely and fits into the depression in the bottom of the spring immediately above it. The length of the archings will increase slightly with each spring, beginning at the bottom, as shown in Fig. 2.

The result of this construction is that the springs are prevented from moving laterally and longitudlnally on each other; and

is that that portion of the spring immediately above the support is very much stifi'er longitudinally than when the leaves are left flat, which result-s in a longer life, the leaves being prevented from flexing immediately above the support, which flexing often results in the breaking of the springs at this point. The perch 4 may be provided with flanges 14 to assist in preventing lateral movement of the leaves, and in preventing them and the filler block from turning.

It will be understood that this innovation in spring construction can be embodied in springs of many different types so long as they are built up of bars or plates of flat spring metal. The height and length of the arching will depend upon the character of the support and the work to be performed by the springs.

I claim:

1. In a vehicle spring construction, the combination of a spring perch mounted on the axle, a depression in the upper surface of the spring perch, a filler block mounted on the perch and having its upper surface arched longitudinally and transversely, a lug on the lower surface of the filler block projecting into the depression in the upper surface of the filler block, and a spring mounted on the hller block having the portionadjacent said filler block arched longitudinally and transversely in such a manner that the depression formed thereby is adapted to receive the arched portion of the filler block, said perch formed with upwardly extending flanges between which the filler block and spring may fit, and bolts for securing the parts together.

2. In a vehicle spring construction, the combination of a spring perch mounted on the axle, a depression in the upper surface of the spring perch, a filler block mounted on the perch and having its upper surface arched longitudinally and transversely, a lug on the lower surface of the filler block projecting into the depression in the upper surface of the filler block, and a spring formed of a series of leaves mounted on the filler block, each leaf arched transversely and longitudinally away from the support, the arched portions of one leaf fitting into the depression of the next adjacent leaf,

and the arched portion of the filler block fitspecification in the presence oftwo subscribting into the depression of1 the 1leaf 1162111531817 ing Witnesses. t iereto said aerch 'ormec Wit1 u War 7 extending fizuiges between which tiie fillei v WVILLIAM 5 block and spring fit, and bolts for securing WVitnesses:

the parts together. HUGO W. KREINBRING, In testimony whereof I have signed this MARY A. HAWTHORNE;

Copies of this patent may be obtained for five cents each; By addressing the Commissioner of Patents,

Washington, D. G. 

